Shearing tool for IGBT (Insulated Gate Bipolar Translator) pins

By designing a cutting fixture for IGBT pins, the problem of insulation withstand voltage test failure caused by excessive pin length was solved, achieving pin length consistency and improving product quality.

CN223819546UActive Publication Date: 2026-01-23HANGZHOU LINGDONG AUTOMOTIVE THERMAL MANAGEMENT TECH CO LTD
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Patent Information

Application Number
CN202520083162.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-01-23
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

When the IGBT pins are assembled with the controller PCBA, they are too long, which causes the insulation withstand voltage test to fail. The position and height of the pins are not consistent when they are manually cut, which affects the product quality.

Method used

Design a shearing fixture that includes a fixture holder, a pressing and fixing mechanism, and a shearing mechanism. The pressing and fixing mechanism fixes the IGBT assembly, and the shearing mechanism cuts off the extended pins in one go, ensuring the consistency of the cutting position.

Benefits of technology

This improved shearing efficiency and pin length consistency, enhanced product quality, and ensured the pass rate of insulation withstand voltage tests.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile part assembly, in particular to a shearing tool for IGBT (Insulated Gate Bipolar Translator) pins, which comprises a tool fixing seat and is characterized in that the tool fixing seat comprises a tool bottom plate and a tool back plate, the tool back plate is fixedly connected onto the tool bottom plate, the upper part of the tool back plate is provided with a pressing fixing mechanism, and the pressing fixing mechanism is fixedly connected onto the tool bottom plate. A shearing mechanism used for shearing pins is arranged on the lower portion of the tool back plate, and a starting button is arranged on the tool bottom plate. According to the utility model, the IGBT assembly can be fixed on the fixed cutter group through the pressing fixing mechanism, and then the cutting mechanism can cut the grown pins at one time, so that the cutting efficiency is improved, the uniformity of cutting positions can be ensured, the consistency of the lengths of the cut pins is improved, and the product quality is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts assembly belongs to a kind of for IGBT pin's shearing tooling. BACKGROUND

[0002] IGBT component is the power component of new energy automobile air conditioning system compressor controller, main function is to drive new energy automobile air conditioner compressor, ensure that compressor can normally operate, meet the requirements such as automobile air conditioning comfort. IGBT is assembled with controller PCBA, pin is too long, and then leading to controller insulation withstand voltage test unqualified, so after assembling, longer pin needs to be reduced manually, to ensure safe creepage distance. Manual pin cutting position and height cannot be consistent, cannot guarantee product quality. UTILITY MODEL CONTENT

[0003] In view of the above technical problems, the utility model provides a kind of for IGBT pin's shearing tooling.

[0004] In order to realize the above purpose, the utility model provides the following technical scheme:

[0005] The application provides a kind of for IGBT pin's shearing tooling, including tooling fixed seat, its characterized in that, the tooling fixed seat includes tooling bottom plate and tooling backboard, the tooling backboard is fixedly connected on tooling bottom plate, the upper portion of the tooling backboard is equipped with down pressure fixed mechanism, the lower portion of the tooling backboard is equipped with the shearing mechanism for shearing pin, the tooling bottom plate is equipped with start button.

[0006] As preferred, the down pressure fixed mechanism includes connecting block and L-shaped connecting rod, the connecting block is connected with triangular support, one end of the triangular support is equipped with connecting head, the other end of the triangular support is equipped with guide sleeve, one end of the L-shaped connecting rod is movably connected with the connecting head, the other end of the L-shaped connecting rod is equipped with handle, bridge plate is movably connected in the middle of the L-shaped connecting rod, the other end of the bridge plate is equipped with down pressure rod, and the down pressure rod is movably connected with the bridge plate.

[0007] As preferred, the down pressure rod lower end is equipped with internal thread hole, the internal thread hole is connected with threaded rod by thread cooperation, and the lower end of the threaded rod is equipped with fixed pressure head.

[0008] As preferred, the shearing mechanism includes installation seat arranged on both sides of tooling backboard, drive cylinder is arranged in the installation seat, work-shaped connector is connected to the output end of the drive cylinder, connecting plate is connected to the top end of the work-shaped connector, and moving knife holder is connected to the connecting plate, moving knife group is arranged in the moving knife holder.

[0009] As preferred, fixed knife holder is arranged on the tooling backboard, fixed knife group is arranged on the fixed knife holder, and pin perforation is arranged on the fixed knife group.

[0010] Compared with the prior art, the utility provides a shearing tool for IGBT pins, which has the following beneficial effects:

[0011] The utility discloses a lower pressing fixing mechanism and a shearing mechanism, the IGBT component can be fixed on the fixed cutter group through the lower pressing fixing mechanism, then the protruding pins can be sheared at one time through the shearing mechanism, the shearing efficiency is improved, the cutting position uniformity is ensured, the consistency of the pin length after cutting is improved, and the product quality is improved.

[0012] The features and advantages of the utility will be described in detail in combination with the drawings through embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility;

[0014] Figure 2 It is a structure schematic view of the lower pressing fixing mechanism of the utility;

[0015] Figure 3 It is a structure schematic view of the shearing mechanism of the utility;

[0016] In the figure: 1, tool fixing seat; 2, lower pressing fixing mechanism; 3, shearing mechanism; 4, start button; 11, tool bottom plate; 12, tool back plate; 21, connecting block; 22, triangular support; 23, L-shaped connecting rod; 24, handle; 25, bridging plate; 26, lower pressing rod; 27, threaded rod; 28, fixed pressing head; 221, connecting head; 222, guide sleeve; 261, internal thread hole; 31, mounting seat; 32, driving cylinder; 33, H-shaped joint; 34, connecting plate; 35, moving cutter seat; 36, moving cutter group; 37, fixed cutter seat; 38, fixed cutter group; 381, pin perforation. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility more clear and explicit, the utility is further described in detail through the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility, and are not used to limit the scope of the utility. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility.

[0018] Referring to Figure 1The utility model provides a kind of shearing tool for IGBT pin, including tooling fixed seat 1, it is characterized by: the tooling fixed seat 1 includes tooling bottom plate 11 and tooling backplate 12, the tooling backplate 12 is fixedly connected on tooling bottom plate 11, the upper portion of the tooling backplate 12 is equipped with down-pressing fixing mechanism 2, the lower portion of the tooling backplate 12 is equipped with shearing mechanism 3 for shearing pin, the tooling bottom plate 11 is equipped with start button 4.

[0019] Reference Figure 2 Specifically, the down-pressing fixing mechanism 2 includes a connecting block 21 and an L-shaped connecting rod 23, the connecting block 21 is connected with a triangular support 22, one end of the triangular support 22 is provided with a connecting head 221, the other end of the triangular support 22 is provided with a guide sleeve 222, one end of the L-shaped connecting rod 23 is movably connected with the connecting head 221, the other end of the L-shaped connecting rod 23 is provided with a handle 24, a bridging plate 25 is movably connected in the middle of the L-shaped connecting rod 23, the other end of the bridging plate 25 is provided with a down-pressing rod 26, the down-pressing rod 26 is movably connected with the bridging plate 25, the handle 24 is used for applying pressure, the L-shaped connecting rod 23 transmits the force to the bridging plate 25, the bridging plate 25 drives the down-pressing rod 26 to press down, and the down-pressing rod 26 is used for pressing down the IGBT bottom plate.

[0020] Reference Figure 2 Specifically, an internal thread hole 261 is formed in the lower end of the down-pressing rod 26, a threaded rod 27 is connected with the internal thread hole 261 through thread cooperation, and a fixed pressure head 28 is arranged at the lower end of the threaded rod 27, so that the fixed pressure head 28 can be easily disassembled and replaced through thread connection.

[0021] Reference Figure 3 Specifically, the shearing mechanism 3 includes a mounting seat 31 arranged on both sides of the tooling backplate 12, a driving cylinder 32 is arranged in the mounting seat 31, a work-shaped connector 33 is connected with the output end of the driving cylinder 32, a connecting plate 34 is connected with the top end of the work-shaped connector 33, a moving knife holder 35 is connected with the connecting plate 34, and a moving knife group 36 is arranged in the moving knife holder 35.

[0022] Reference Figure 3 Specifically, a fixed knife holder 37 is arranged on the tooling backplate 12, a fixed knife group 38 is arranged on the fixed knife holder 37, and a pin perforation 381 is arranged on the fixed knife group 38.

[0023] The use principle of the utility model is: firstly, the IGBT assembly which needs to cut the pin is placed on the fixed cutter set 38, the pin is penetrated into the pin perforation 381, then the staff applies pressure to the handle 24, the L-shaped connecting rod 23 transmits the force to the bridge plate 25, the bridge plate 25 drives the downward pressing rod 26 to press down, the downward pressing rod 26 presses down along the guide sleeve 222, further drives the fixed pressing head 28 to press on the IGBT assembly, keeps the IGBT assembly stable, then starts the start button 4, the output end of the driving cylinder 32 is elongated, drives the moving cutter set 36 to move, thereby cutting the grown pin.

[0024] The above only describes the preferred embodiment of the utility model and does not limit the utility model, any modification, equivalent replacement or improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cutting fixture for IGBT pins, comprising a fixture holder (1), characterized in that: The tooling fixture (1) includes a tooling base plate (11) and a tooling back plate (12). The tooling back plate (12) is fixedly connected to the tooling base plate (11). The upper part of the tooling back plate (12) is provided with a pressing and fixing mechanism (2). The lower part of the tooling back plate (12) is provided with a cutting mechanism (3) for cutting pins. The tooling base plate (11) is provided with a start button (4).

2. The cutting fixture for IGBT pins as described in claim 1, characterized in that: The pressing and fixing mechanism (2) includes a connecting block (21) and an L-shaped connecting rod (23). A triangular support (22) is connected to the connecting block (21). One end of the triangular support (22) is provided with a connector (221), and the other end of the triangular support (22) is provided with a guide sleeve (222). One end of the L-shaped connecting rod (23) is movably connected to the connector (221), and the other end of the L-shaped connecting rod (23) is provided with a handle (24). A bridge plate (25) is movably connected to the middle of the L-shaped connecting rod (23), and a pressing rod (26) is provided at the other end of the bridge plate (25). The pressing rod (26) and the bridge plate (25) are movably connected.

3. The cutting fixture for IGBT pins as described in claim 2, characterized in that: The lower end of the pressure rod (26) is provided with an internal threaded hole (261), and the internal threaded hole (261) is connected to a threaded rod (27) through a threaded fit. The lower end of the threaded rod (27) is provided with a fixed pressure head (28).

4. The cutting fixture for IGBT pins as described in claim 1, characterized in that: The shearing mechanism (3) includes mounting bases (31) on both sides of the tooling back plate (12). A drive cylinder (32) is provided in the mounting base (31). An I-shaped connector (33) is connected to the output end of the drive cylinder (32). A connecting plate (34) is connected to the top of the I-shaped connector (33). A moving blade holder (35) is connected to the connecting plate (34). A moving blade assembly (36) is provided in the moving blade holder (35).

5. A cutting fixture for IGBT pins as described in claim 4, characterized in that: The tooling back plate (12) is provided with a fixed tool holder (37), the fixed tool holder (37) is provided with a fixed tool group (38), and the fixed tool group (38) is provided with a pin through hole (381).